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DE-102024210884-A1 - Method for determining resource allocation for measurement in a node

DE102024210884A1DE 102024210884 A1DE102024210884 A1DE 102024210884A1DE-102024210884-A1

Abstract

The invention relates to a method (100) for determining a resource allocation for measurement in a node (10) of a communication network, comprising: - Receiving (101) a request for resource allocation for measurement via a sidelink channel from a device (20) in the communication network, - Determine (102) the resource allocation for the device (20) based on the received (101) request, wherein the resource allocation specifies a time and/or a frequency resource and/or a code index for use by the device (20) for measurement via the sidelink channel of the device (20), where the code index defines a specific code from a set of codes, - Providing (103) a message based on the specified (102) resource allocation, - Sending (104) the message to the device (20).

Inventors

  • Mehdi HAROUNABADI
  • Ali Kariminezhad

Assignees

  • Robert Bosch Gesellschaft mit beschränkter Haftung

Dates

Publication Date
20260513
Application Date
20241113

Claims (13)

  1. Method (100) for determining a resource allocation for measurement in a node (10) of a communication network, comprising: - Receiving (101) a request for a resource allocation for measurement via a sidelink channel from a device (20) in the communication network, - Determining (102) the resource allocation for the device (20) based on the received (101) request, where the resource allocation specifies a time and/or frequency resource and/or a code index for use by the device (20) for measurement via the sidelink channel of the device (20), where the code index defines a specific code from a set of codes, - Providing (103) a message based on the determined (102) resource allocation, - Sending (104) the message to the device (20).
  2. Procedure (100) according to Claim 1 , characterized in that - the code index is assigned to a validity zone, wherein the validity zone specifies an area of the communication network in which the specific code index is valid for performing measurements via the sidelink channel by the device (20), and/or - the code index is assigned to a validity time, wherein the validity time is defined as the time or duration for which the code index is valid.
  3. Method (100) according to one of the preceding claims, characterized in that the method (100) further comprises: - providing a further message for at least one other device (21) of the communication network, wherein the further message comprises further resource allocation information regarding available code indices for measurement for the at least one other device (21), - sending the further message to the at least one other device (21).
  4. Method (100) according to one of the preceding claims, characterized in that the method (100) further comprises: - providing a notification message by the node (10) regarding already assigned code indices for measurement for one or the at least one other device (41) of the communication network, - sending the notification message to the at least one other device (21) by the node (10).
  5. Procedure (100) according to Claim 4 , characterized in that the method (100) further comprises: - exchanging the respective assigned code index between the device (20) and the at least one other device (21) to enable termination of the measurement signal of the at least one other device (21) in the event of disturbances on the sidelink channel.
  6. Method (100) according to one of the preceding claims, characterized in that the sending (104) further comprises: - sending the specified (102) resource allocation by the node (10) on the basis of granting the received (101) request via a downlink control information message.
  7. Method (100) according to one of the preceding claims, characterized in that the set of codes comprises a predefined mutually independent coding scheme or a predefined set of codes comprising specific correlation features, in particular orthogonal or semi-orthogonal codes.
  8. Method (100) according to one of the preceding claims, characterized in that the method (100) further comprises: - defining a validity zone for measurement in a coverage area of the communication network, wherein each validity zone is assigned to one and/or a subset of code indices, and/or - assigning a device (20) to a specific validity zone based on its location in the communication network and/or its measurement requirement based on the specified (102) resource allocation.
  9. Method (100) according to one of the preceding claims, characterized in that the measurement comprises a bistatic and/or multistatic measurement.
  10. Node (10) with means for carrying out the procedure (100) according to one of the Claims 1 until 9 .
  11. System (30) for integrated measurement and communication in a communication network, wherein the system (30) includes at least one node (10) according to Claim 10 to carry out the procedure (100) according to one of the Claims 1 until 9 includes.
  12. A message (300), preferably a downlink control information message (300) of a communication network, for resource allocation for measurement, comprising a first data field representing information (310) regarding resource allocation with reference to a time and/or frequency resource for a device (20) for measurement via a sidelink channel, characterized in that the message (300) further comprises a second data field representing a code index (320), wherein the code index defines a specific code from a set of codes.
  13. Message (300) after Claim 12 , characterized in that the message (300) further comprises: - a third data field representing a validity time (330) for the code index (320), wherein the validity time is defined as the time or duration for which the code index is valid, and/or - a fourth data field representing a validity zone (340), wherein the validity zone specifies an area of the communication network in which the specific code index is valid for performing measurements via the sidelink channel by the device (20).

Description

The invention relates to a method for determining resource allocation for measurement at a node. Furthermore, the invention relates to a node, a system, and a message for this purpose. State of the art Radio resource allocation for sidelink communication, particularly for measurement purposes, is specified in the 3GPP standard, which outlines the physical layer procedures for NR (New Radio) in 5G systems. Sidelink communication refers to direct communication between devices without traversing the network. The communication network is known to control resource allocation for sidelink communication as well. Specifically, the next-generation Node B (gnode B) is responsible for allocating and allocating radio resources for sidelink communication. That is, the gnode B controls the resources for direct device-to-device communication. Devices are provided with information containing specific instructions on when and how to transmit. However, due to limited spectrum resources and high bandwidth requirements for adequate range resolution and separation, it is often still problematic to ensure compliance with communication and measurement requirements, for example, due to interference problems between devices during measurement. One object of the present invention is therefore to overcome at least some of the disadvantages described above. In particular, it is an object of the present invention to improve the existing radio resource allocation procedures for sidelink communication. Disclosure of the invention According to aspects of the invention, a method with the features of claim 1, a node with the features of claim 10, a system with the features of claim 11, and a message with the features of claim 12 are provided. Further features and details of the invention are disclosed in the respective dependent claims, in the description, and in the drawings. Features and details described in the context of the method according to the invention also correspond to the node, the system, and the message according to the invention, and vice versa. According to one aspect of the invention, a method for determining a resource allocation for measurement in a node of a communication network comprises the following: - Receiving a request for resource allocation for measurement via a sidelink channel, in particular of the communication network, from a device in the communication network, - Determining the resource allocation for the device based on the received request, wherein the resource allocation specifies a time and/or a frequency resource and/or a code index for use by the device for measurement via the device's sidelink channel, where the code index defines a specific code from a set of codes, - Providing a message based on the specified resource allocation, - Sending the message to the device. Receiving a request can include receiving a request message, where the request message contains a request for resource allocation for measurement over a sidelink channel. The request can be understood as a request for the allocation of radio resources of the sidelink channel to perform measurement. Measurement can include generating measurement data, e.g., of a defined region of interest, by transmitting a radio measurement signal and receiving a reflection of the transmitted radio measurement signal, using radio resources of the communication network to transmit and receive the measurement signal. The request message and/or the provided message can be transmitted on a PUCCH (Physical Uplink Control Channel), a PUSCH (Physical Uplink Shared Channel), a PDCCH (Physical Downlink Control Channel), a PDSCH (Physical Downlink Shared Channel), a PSCCH (Physical Sidelink Control Channel), or a PSSCH (Physical Sidelink Shared Channel) of the communication network. For example, the request message can be sent on the PUCCH and the provided message can be sent on the PDCCH. Preferably, the provided message includes an indication or representation of the specific resource allocation, especially radio resources of the sidelink channel allocated for measurement by the device. The procedure can be described as a procedure specifically for operating the communication node. network, understood as being executed or carried out by the operating node. The invention effectively utilizes the sidelink channel for efficient communication between devices or user equipment (UE). This enables efficient and collaborative measurement by allowing multiple devices to share resources while minimizing interference. Sending a specific resource allocation as a message to the device enables coordinated measurement operations. These codes are specifically chosen for their auto- and cross-correlation properties, enabling enhanced interference cancellation by identifying and mitigating interference from other devices performing measurements using the same sidelink channel. A code can be understood as a sequence of symbols that, taken together, provide useful properties. Fu